ZG230-450大型铸钢件塑性低的原因分析  

Cause Analysis of Low Plasticity of ZG230-450 Heavy Steel Casting

作　　者：郑庆行 温玉磊 张文良 赵锦同 ZHENG Qing-hang;WEN Yu-lei;ZHANG Wen-liang;ZHAO Jin-tong(Henan Province Industrial and Information Senior Technology School,Xinzheng Henan 451150,China;Tongyu Heavy Industry Co.,Ltd.,Yucheng Shandong 251200,China;Jiaozuo Boiler and Pressure Vessel Inspection Institute,Jiaozuo Henan 454000,China;Luoyang Hengyan Heat Treatment Co.,Ltd.,Luoyang Henan 471022,China)

机构地区：[1]河南省工业和信息化高级技工学校,河南新郑451150 [2]通裕重工股份有限公司,山东禹城251200 [3]焦作市锅炉压力容器检验所,河南焦作454000 [4]洛阳恒焱热处理有限公司,河南洛阳471022

出　　处：《热处理技术与装备》2022年第5期32-35,共4页Heat Treatment Technology and Equipment

摘　　要：为了找到ZG230-450大型铸钢件塑性低的原因,本文对其热处理后拉伸断口的化学成分、非金属夹杂物、晶粒度和气体含量进行检测与分析。结果表明:大型铸钢件中氢含量过高,导致钢件塑性严重偏低。In order to find the cause for low plasticity, the chemical composition, non-metallic inclusions, grain size and gas content of the tensile fracture of ZG230-450 heavy steel casting after heat treatment were detected and analyzed.The results showed that the high hydrogen content caused the low plasticity of heavy steel casting.

关 键 词：铸钢 拉伸性能 白色斑点 塑性 氢含量 

分 类 号：TG164.4[金属学及工艺—热处理]